141 lines
5.3 KiB
Python
141 lines
5.3 KiB
Python
# Copyright 2015 Bob Callaway. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""change volume_type to share_type
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Revision ID: 38e632621e5a
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Revises: 162a3e673105
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Create Date: 2014-10-02 09:14:03.172324
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"""
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# revision identifiers, used by Alembic.
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revision = '38e632621e5a'
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down_revision = '211836bf835c'
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from alembic import op
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from oslo_log import log
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from oslo_utils import strutils
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import sqlalchemy as sa
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from sqlalchemy.sql import table
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from manila.i18n import _LI
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LOG = log.getLogger(__name__)
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def upgrade():
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LOG.info(_LI("Renaming column name shares.volume_type_id to "
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"shares.share_type.id"))
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op.alter_column("shares", "volume_type_id",
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new_column_name="share_type_id",
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type_=sa.String(length=36))
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LOG.info(_LI("Renaming volume_types table to share_types"))
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op.rename_table("volume_types", "share_types")
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op.drop_constraint('vt_name_uc', 'share_types', type_='unique')
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op.create_unique_constraint('st_name_uc', 'share_types',
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['name', 'deleted'])
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LOG.info(_LI("Creating share_type_extra_specs table"))
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st_es = op.create_table(
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'share_type_extra_specs',
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sa.Column('created_at', sa.DateTime),
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sa.Column('updated_at', sa.DateTime),
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sa.Column('deleted_at', sa.DateTime),
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sa.Column('deleted', sa.Integer),
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sa.Column('id', sa.Integer, primary_key=True, nullable=False),
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sa.Column('share_type_id', sa.String(length=36),
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sa.ForeignKey('share_types.id', name="st_id_fk"),
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nullable=False),
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sa.Column('spec_key', sa.String(length=255)),
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sa.Column('spec_value', sa.String(length=255)),
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mysql_engine='InnoDB')
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LOG.info(_LI("Migrating volume_type_extra_specs to "
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"share_type_extra_specs"))
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_copy_records(destination_table=st_es, up_migration=True)
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LOG.info(_LI("Dropping volume_type_extra_specs table"))
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op.drop_table("volume_type_extra_specs")
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def downgrade():
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LOG.info(_LI("Creating volume_type_extra_specs table"))
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vt_es = op.create_table(
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'volume_type_extra_specs',
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sa.Column('created_at', sa.DateTime),
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sa.Column('updated_at', sa.DateTime),
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sa.Column('deleted_at', sa.DateTime),
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sa.Column('deleted', sa.Boolean),
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sa.Column('id', sa.Integer, primary_key=True, nullable=False),
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sa.Column('volume_type_id', sa.String(length=36),
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sa.ForeignKey('share_types.id'), nullable=False),
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sa.Column('key', sa.String(length=255)),
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sa.Column('value', sa.String(length=255)),
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mysql_engine='InnoDB')
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LOG.info(_LI("Migrating share_type_extra_specs to "
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"volume_type_extra_specs"))
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_copy_records(destination_table=vt_es, up_migration=False)
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LOG.info(_LI("Dropping share_type_extra_specs table"))
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op.drop_table("share_type_extra_specs")
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LOG.info(_LI("Renaming share_types table to volume_types"))
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op.drop_constraint('st_name_uc', 'share_types', type_='unique')
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op.create_unique_constraint('vt_name_uc', 'share_types',
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['name', 'deleted'])
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op.rename_table("share_types", "volume_types")
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LOG.info(_LI("Renaming column name shares.share_type_id to "
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"shares.volume_type.id"))
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op.alter_column("shares", "share_type_id",
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new_column_name="volume_type_id",
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type_=sa.String(length=36))
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def _copy_records(destination_table, up_migration=True):
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old = ('volume', '')
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new = ('share', 'spec_')
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data_from, data_to = (old, new) if up_migration else (new, old)
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from_table = table(
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data_from[0] + '_type_extra_specs',
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sa.Column('created_at', sa.DateTime),
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sa.Column('updated_at', sa.DateTime),
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sa.Column('deleted_at', sa.DateTime),
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sa.Column('deleted', sa.Integer if up_migration else sa.Boolean),
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sa.Column('id', sa.Integer, primary_key=True, nullable=False),
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sa.Column(data_from[0] + '_type_id', sa.String(length=36)),
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sa.Column(data_from[1] + 'key', sa.String(length=255)),
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sa.Column(data_from[1] + 'value', sa.String(length=255)))
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extra_specs = []
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for es in op.get_bind().execute(from_table.select()):
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if up_migration:
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deleted = strutils.int_from_bool_as_string(es.deleted)
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else:
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deleted = strutils.bool_from_string(es.deleted)
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extra_specs.append({
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'created_at': es.created_at,
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'updated_at': es.updated_at,
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'deleted_at': es.deleted_at,
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'deleted': deleted,
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'id': es.id,
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data_to[0] + '_type_id': getattr(es, data_from[0] + '_type_id'),
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data_to[1] + 'key': getattr(es, data_from[1] + 'key'),
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data_to[1] + 'value': getattr(es, data_from[1] + 'value'),
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})
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op.bulk_insert(destination_table, extra_specs)
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